This is pretty speculative, so if anyone wants to erase now...
My AB-577 (the first and only one I've ever been up close and personal
with) has a short stub of tubing that is integral with the top guy
connection, and on which my C-3 mounts nicely . If I want to stack a
6-meter yagi on top of my existing tribander, I suspect that the best
way to do so would be to telescope the bottom end of 6 feet or so of
tubing inside the stub and put a bolt through to hold it both vertically
and in rotation. Just by chance, has anyone ever measured the inside
diameter of that short stub (assuming that it is, in fact, part of the
standard AB-577)? I'd hate to get the rocket launcher all the way down,
only to find that the mast extension I will have selected is either too
small or too large.
--
73, Pete N4ZR
Check out the new Reverse Beacon Network
web server at<https://reversebeacon.net>.
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"retail" DX cluster.
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